Improvement in granulating and drying sugar



UNITED STATES- PATENT OEEIeEa JESSE HANFORD, OF LEXINGTON, MASSACHUSETTS.

IMPROVEMENT IN GRANULATING AND DRYING SUGAR.

Specification forming part of Letters PatentNo. 58,098, dated September 18, 1866.

To all whom it may concern:

Be it known that I, JEssE HANFoRD, doing business in Boston, but residingin Lexington, inthe State of Massachusetts, have made a new and useful Invention for Granulatin g and Drying Sugar, such invention also being applicable to othernseful purposes, such as gran ulating and drying salt or drying grain and I do hereby declare the same to be fully described in the following` specification and represented in the accompanying drawings, of which- Figure 1 `is a top view, and Fig. 2 a longitudinal section, of it.

In such drawings, A denotes a tubular heater composed of two concentric cylinders, a b, united at their ends by annular heads c d.

Journals e e project from the middle of the outer surface of the said heater, and are supported in boXesff, upheld by two Standards, B B, the same being so that the heater may be inclined more or less to the horizon, its inclination being determined by two wedges, or, what is the same, by screws, O D, arranged underneath and against two curved arms, E F, projecting from opposite ends of the heater, in manner as represented in Figs. l and 2. The standards B B and the screws (l D rest on a bed-plate, GL

The arms E F are formed with boxes ff for supporting a shaft, H, which extends through the axis of the heater, and is connected with a tubular cylinder, I, by means of two series of radial arms, gg. The said cylinder I is arranged with the heater, and with the internal curved surface ofthe latter nearly in contact with the external curved` surface of the E' cylinder.

There is suspended from the shaft by means of two arms, h h, applied so as to turn freely on it, a pulverizing or granulating roller, K, it being arranged near the induction end of the cyl'- inder. Furthermore, there is within the cylinder, and affixed to its arms, a series of helical wings, t' z', which, while the cylinder may be in revolution, aid in causing the sugar or other material which may enter it at its induction end to ow or move toward and out of the eduetion end. By increasing the inclination 'of the heater the velocity of movement of the material through the cylinder may be increased.

The heaterV is intended to receive steam or heated air for imparting heat to it, and for this purpose it may have a pipe leading' into it from a steam-generator or an air-heater, and such pipe 4may enter it through the axis of one of the journals of the heater; and for the purpose of discharging the water produced by condensation of steam, there may be a stopcock at the lower part of the heater.

On revolving the cylinder, by putting the shaft in quick revolution and pouring sugar in a lumpy and wet'or moist state into the receiving end of the cylinder, such sugar will be crushed or broken up by the roller, and will be caused to move around on and through the cylinder in a manner to be granulated and dried, in case the cylinder is heated by the heater supplied with steam or'hot air. y

Vhen the apparatusis to be used for drying grain or substances not requiring to be granulated or pulverized, the crushing-roller should or may be previously removed from the `cylinder. l I claim as my invention the following, viz:

1. The combination of the rotary hollow drum or cylinder I andthe tubular heater, ar ranged and connected substantially as de scribed.

2. The combination of the rotary or hollow cylinder I, the crushing-roller K, and the tubular heater, arranged and applied together substantially in manner and so as to operate as and for the purpose described.

3. The combination of the journals e e and their supporting-standards B B of the tubular heater with such heater and -the rotary cylinder, or the same and the crushing-roller, applied and arranged together substantially as specified. t

4. The combination and arrangement of the series of helical wings i t' with the cylinder and the heater, applied in manner and so as to operate as specified.

JESSE HA'NFORD.

Witnesses:

F. P. HALE, J r., GEORGE ANDREWS. 

